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IFTA due date helper

Pick any date to see its IFTA quarter, the day the return and payment are due and how many days are left. The 3Q2026 return is due Monday, November 2, 2026, because Saturday, October 31, 2026 is a Saturday.

Rule: The tax return and full payment are due on the last day of the month following the close of the quarter; if that day is a Saturday, Sunday or legal holiday, the next business day is the due date. This page moves Saturdays and Sundays; a legal holiday in your base jurisdiction moves the date too.

Pick a date to see its quarter and due date.

How it works

The tax return and full payment are due on the last day of the month following the close of the quarter; if that day is a Saturday, Sunday or legal holiday, the next business day is the due date. Tax returns are required even if no operations were conducted or no taxable fuel was used during the quarter. Returns not filed or full payment not made by the due date are late and the taxes due are delinquent.

IFTA quarterly returns for 2026 (computed with the R960 rule)
QuarterMonthsDueWeekend shift
1Q2026January to MarchThursday, April 30, 2026none
2Q2026April to JuneFriday, July 31, 2026none
3Q2026July to SeptemberMonday, November 2, 2026from Saturday 2026-10-31
4Q2026October to DecemberMonday, February 1, 2027from Sunday 2027-01-31

Late: the base jurisdiction may assess $50 or 10% of the delinquent tax, whichever is greater ($50.00 on $300 of tax, $200.00 on $2,000). Interest on delinquent taxes: 2 percentage points above the IRS underpayment rate (Internal Revenue Code 6621(a)(2)), set each January 1, accruing monthly at 1/12 of the annual rate.

A licensee with under 5,000 miles (8,000 km) in all member jurisdictions other than the base jurisdiction over 12 months may ask the base jurisdiction to report annually; the annual return is due January 31.

Sources of the rules

Frequently asked questions

When is the IFTA return for the 3rd quarter of 2026 due?
Monday, November 2, 2026. The rule is the last day of the month after the quarter, Saturday, October 31, 2026, but that is a Saturday, so the next business day applies (IFTA Articles of Agreement R960.100).
Do I file an IFTA return if I did not drive?
Yes. A return is required every quarter even with no operations or no taxable fuel (R930.100); file it with zero miles.
What is the penalty for a late IFTA return?
$50 or 10% of the delinquent tax, whichever is greater (R1220.100), plus interest on the unpaid tax. A return is late if it is not filed or not fully paid by the due date.
Does a mailed return count on the postmark date?
Yes: R960.200 counts a mailed return as filed on the postmark date of the national postal service or delivery service, if the envelope is properly addressed and stamped. An electronic return counts on the date your base jurisdiction's law sets.

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